/usr/include/gamera/floatpoint.hpp is in python-gamera-dev 3.3.3-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright (C) 2005 Michael Droettboom
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef mgd_floatpoint
#define mgd_floatpoint
#include "gamera.hpp"
#include <math.h>
template<class T>
class PointBase {
private:
T m_x, m_y;
public:
typedef PointBase<T> self;
// Default constructor
inline PointBase() : m_x(), m_y() {}
// Basic constructor
inline PointBase(T x, T y) : m_x(x), m_y(y) {}
// From standard Gamera point
inline PointBase(const Gamera::Point& p) : m_x(T(p.x())), m_y(T(p.y())) {}
// Copy constructor
inline PointBase(const self& p) : m_x(p.x()), m_y(p.y()) {}
// Return the x coordinate
inline T x() const {
return m_x;
}
// Return the y coordinate
inline T y() const {
return m_y;
}
// Equality
template<class OtherPoint>
inline bool operator==(const OtherPoint& p) const {
T e = std::numeric_limits<T>::epsilon();
return (std::abs(m_x - T(p.x())) < e &&
std::abs(m_y - T(p.y())) < e);
}
// Inequality
template<class OtherPoint>
inline bool operator!=(const OtherPoint& p) const {
return (m_x != T(p.x()) || m_y != T(p.y()));
}
// Addition
template<class OtherPoint>
inline self operator+(const OtherPoint& p) const {
return self(m_x + T(p.x()), m_y + T(p.y()));
}
// Subtraction
template<class OtherPoint>
inline self operator-(const OtherPoint& p) const {
return self(m_x - T(p.x()), m_y - T(p.y()));
}
// Multiplication
template<class OtherPoint>
inline self operator*(const OtherPoint& p) const {
return self(m_x * T(p.x()), m_y * T(p.y()));
}
// Division
template<class OtherPoint>
inline self operator/(const OtherPoint& p) const {
return self(m_x / T(p.x()), m_y / T(p.y()));
}
// Unary minus
inline self operator-() const {
return self(-m_x, -m_y);
}
// Unary plus
inline self operator+() const {
return self(+m_x, +m_y);
}
// Euclidean distance
template<class OtherPoint>
inline T distance(const OtherPoint& p) const {
T x_dist = m_x - T(p.x());
T y_dist = m_y - T(p.y());
return std::sqrt(x_dist*x_dist + y_dist*y_dist);
}
};
template<class T>
inline static PointBase<T> abs(PointBase<T> p) {
return PointBase<T>(std::abs(p.x()), std::abs(p.y()));
}
template<class T>
std::ostream& operator<<(std::ostream& s, const PointBase<T>& point) {
return s << "FloatPoint(" << point.x() << ", " << point.y() << ")";
}
typedef PointBase<double> FloatPoint;
#endif
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